REACT SNR features a full grain leather upper and a breathable lining. This durable school shoe includes a 30 day perfect fit guarantee and a 12 month warranty for added peace of mind. Full grain leather upper. Moulded polyurethane insole. Polyurethane sole. Fully stitched outsole for an enhanced bond between the upper and sole of the shoe. 5 point durability testing: tested for flex, colour fastness, bonding, and lining and outsole abrasion.